Track-And-Trace

RFID tags consist of a chip and antenna, and are usually applied to a package or product via pressure-sensitive labels, which offer the option of additional print on the label face. The tags may be passive (generally read-only), or active (tag data can be modified or rewritten, and can be transmitted over a longer distance), and can be read using either a handheld device or via a computer portal. The tags may be overt or covert, according to the needs of the product and brand. System options and tag capabilities are proliferating.